twincest cannot cause more abnormalities than "regular" (gross) sibling incest. If a set of twins are of diferent sex they are not identical, ie they come from different sperm and different egg. Same as any sibling pair
The 1st day of the feek is not universal. I grew up with the week starting on sunday
twincest cannot cause more abnormalities than "regular" (gross) sibling incest. If a set of twins are of diferent sex they are not identical, ie they come from different sperm and different egg. Same as any sibling pair